# def factorial(n):
#     if n ==1:
#         return 1
#     return factorial(n-1)*n
# print(factorial(5))

def fact(n):
    if n==1:
        return 1
    return n * fact(n - 1)
print(fact(100))


def f(n):
    if n == 0:
        return 0
    return f(n-1)+n
print(f(100))

